将多个参数从laravel 5中的路径传递给控制器

Question

我在

路线：

Route::get('feed/{type?}/{first?}/{second?}/{third?}', ['as' => 'feed', 'uses' => 'PostController@feed']);

控制器：

public function feed(Request $request, $type, $first, $second, $third)
{
...

但这会产生错误：

ErrorException in PostController.php line 209:
Missing argument 3 for App\Http\Controllers\PostController::feed()

我做得不好？我忘记了什么？ 谢谢。

Answer 1

根据Laravel Docs

  

确保将路线的相应变量设为默认值

所以它应该是这样的：

public function feed(Request $request = null, $type = null, $first = null, $second = null, $third = null)
{
...

您可以使用您选择的默认值替换null。

Answer 2

你应该将参数声明为可选的

public function feed(Request $request, $type = '', $first = '', $second = '', $third = '')
{